A type of religion in with a person named Ethan is ranked very highly on the social ladder. He typically has many followers that do what ever he wants. They follow him and are at his beck and call. His followers can't live with out him and rely on him as a source of happiness.
Person 1: have you seen Ethan today?
Person 2: Yeah, last time I saw him he was preaching about Ethanism.
It is the usage of sarcasm, with a hint of depression. It is a bi-polar person who is normally negative. It is a person who is rebel and doesn't listen to most people. They try make smart questions seem like stupid questions.
Person: Hahaha that joke was SO funny!
Other Person: (fakelaughs) o so was it really?
Person: That was just usage of Ethanism.